The main talking-points from the Sunday’s Serie A matches in Italy, however, again centred on refereeing decisions with VAR seemingly only adding to the confusion rather than stopping it.

That could make worrying viewing for FIFA which is hoping to use VAR at the World Cup in Russia provided the system, currently in use on a trial basis in a number of countries, is authorised by the sport’s law-making body IFAB. A decision is expected on March 3.

FIFA will have to ask how a system, which is still causing confusion after five months of use in Serie A, can be expected to run smoothly in a tournament where it will be new to most referees and players.

IFAB told Reuters in a statement that it is “analysing all live VAR tests worldwide to ensure that, if VARs were given the green light... the involved referees, video assistant referees and other match officials are effectively equipped and prepared.”

It added that “it is the participating competition organiser’s responsibility to provide adequate training and education for their referees.”

The incidents which led Gazzetta dello Sport to talk of a “black Sunday for referees and VAR” concerned a Milan goal against Lazio which both coaches agreed was handball and a last-minute match-winning Crotone goal disallowed against Cagliari.

Lazio coach Simone Inzaghi said it was unbelievable that Patrick Cutrone’s goal for Milan was given when television replays showed the ball went in off his arm.

“I would like to lose for once without VAR in the middle,” said Inzaghi, who has previously complained that VAR has taken the enjoyment out of the sport.

SEVERAL MINUTES

Crotone’s 90th-minute goal was initially awarded but the referee changed his mind and gave offside after reviewing the incident, a decision which took several minutes. Replays suggested the goal should have stood.

“We had won the game,” Crotone coach Walter Zenga said after the 1-1 draw.

“I saw the incident on television and it dawned on me that it wasn’t offside and I don’t understand how the referee could have made that mistake despite reviewing the incident. It’s inexplicable.”

Another drawback with VAR, which has been exposed in Serie A, is that controversy also arises if a decision is not reviewed - as happened in Napoli’s 3-1 win over Bologna.

Bologna thought they should have been awarded a penalty for handball by Napoli defender Kalidou Koulibaly when the score was 1-1 and were equally angry at a penalty awarded to Napoli for the slightest contact on Jose Callejon.

“In the first incident, (the referee) took the responsibility for the decision himself, maybe to save time, and in the second, he left it to someone else, in this case, the VAR,” Bologna coach Roberto Donadoni said.

“I would have preferred the same degree of judgement for both decisions.”

The length of time it takes to make decisions is another bone of contention, with Juventus coach Massimiliano Allegri warning last year that matches could last “three or four hours” if it was overused.